IM 12B03D02-01E
4-4
4
.
Calibration
The last two calibration results are saved in the meter. Therefore, for 1-point
calibration, perform a 1-point calibration twice using the same standard solution,
or initialize calibration parameters (refer to Section 5.3 (11), “Initialize calibration
parameters (I.CP) panel”) before performing a 1-point calibration.
Example 2: Calibration of a sensor without a built-in temperature element*
using a pH 7 standard solution
*
Needle type or test tube size pH sensor
F0402.ai
POWER
CAL
Input of standard solution
temperature
25.0°C fixed
Temperature set on 'M.tP' panel
F/ENT
F/ENT
Auto calibration in progress
Auto calibration is complete
Standard
solution
temperature
to enter
standard
solution
temperature
Std. sol.
Water
Wait until
reading
stabilizes.
Wipe off washing water
from sensor thoroughly
and then immerse sensor
in standard solution.
to select auto calibration (AUto)
After
a few
seconds
Thermometer
Wash sensor with water
thoroughly (or wash in
water in beaker).
For 2-point calibration, continue the procedure in the same way as Example 1. The
difference between Example 1 and 2 is that
appears on the display and the
temperature of a standard solution should be entered manually.
4.2 Manual Calibration
When using standard solutions other than those preprogrammed for automatic
calibration (see Section 4.1), calibration should be performed manually.
In 2-point calibration, manual calibration can be performed at both two points or
manual calibration performed at one point (either 1st or 2nd) in combination with
automatic calibration using a specified standard solution at the other point.
